harboekollegiet.dk is a .dk domain served by 5 nameservers (ns1.gigahost.dk, ns2.gigahost.dk, ns3.gigahost.dk and 2 more). It was registered on 4 December 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.183.138.100 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by harboekollegiet-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 46.183.138.100 | 3600s | — | AS47292 | Sentia Denmark A/S | 46.183.138.0/23 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.149.152 |
| 🔶 Autoconfig | harboekollegiet.dk → 46.183.138.100 |
| TXT Record |
|---|
| Replace this with your Office 365 token |
| v=spf1 IP4:91.215.162.220 ip4:217.116.213.122 include:spf.protection.outlook.com -all |
| Policy | Record (harboekollegiet.dk) |
|---|---|
| -all (hard fail) | v=spf1 IP4:91.215.162.220 ip4:217.116.213.122 include:spf.protection.outlook.com -all |
| www CNAME | harboekollegiet.dk (all on harboekollegiet.dk) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 1/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.harboekollegiet.dk | harboekollegiet.dk |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026102201 |
| Primary NS (MNAME) | ns1.gigahost.dk |
| Responsible (RNAME) | hostmaster@harboekollegiet.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | GIGAHOST ApS |
| Registered | 2017-12-04 |
| Expires | 2026-12-31 (66d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-22 19:23:25 shown | 1235ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-19 06:51:01 | 2123ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-18 06:04:00 | 1358ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-15 04:28:07 | 1170ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-08 16:26:40 | 1145ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-01 13:42:14 | 1256ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-30 13:37:40 | 1484ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 14:59:01 | 1334ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-17 10:17:39 | 1369ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-11 02:20:26 | 1545ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-03 23:19:41 | 2019ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-28 09:39:53 | 1216ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-27 15:33:52 | 1524ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-20 03:37:48 | 2296ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-13 21:42:16 | 5124ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-07 14:28:20 | 1784ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-01 00:39:11 | 1682ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-23 04:32:34 | 2239ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-21 12:26:42 | 1289ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-17 21:06:52 | 3183ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-09 03:39:01 | 1710ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-03 14:05:05 | 6212ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-28 18:18:32 | 1818ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-22 09:27:20 | 1207ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-19 09:34:19 | 1509ms | 5 NS 1 A 1 MX | 🔓 Insecure |